Invention Grant
- Patent Title: Zoom lens, image pickup apparatus including the same, and control device for the same
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Application No.: US15833340Application Date: 2017-12-06
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Publication No.: US10908400B2Publication Date: 2021-02-02
- Inventor: Kenta Sudo , Hirofumi Abe , Yu Inomoto
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Canon U.S.A., Inc., IP Division
- Priority: JP2016-239811 20161209,JP2016-239812 20161209,JP2016-239813 20161209
- Main IPC: G02B15/173
- IPC: G02B15/173 ; G02B13/02 ; H04N5/232
Abstract:
A zoom lens includes, in order from an object side to an image side, a first lens unit having a positive refractive power; a second lens unit having a negative refractive power; and a third lens unit having a positive refractive power. The first lens unit does not move and the second lens unit and the third lens unit move in mutually different loci during zooming. Conditional expressions are satisfied as follows: 0.05
Public/Granted literature
- US20180164557A1 ZOOM LENS, IMAGE PICKUP APPARATUS INCLUDING THE SAME, AND CONTROL DEVICE FOR THE SAME Public/Granted day:2018-06-14
Information query
IPC分类:
